Elizabeth Bailey is the owner and general manager of Princess Brides, which provides a

wedding planning service in Southwest Louisiana. She uses radio advertising to market

her business. Two types of ads are available $-$ those during prime time hours and

those at other times. Each prime time ad costs $$390$ and reaches $8,200$ people, while

the off $-$ peak ads each cost $$240$ and reach $5,100$ people. Bailey has budgeted $1,800$

per week for advertising. Based on comments from her customers, Bailey wants to

have at least $2$ primetime ads and not more than $6$ off $-$ peak ads.